55546720 has 24 divisors (see below), whose sum is σ = 131229504. Its totient is φ = 22218624.

The previous prime is 55546697. The next prime is 55546721. The reversal of 55546720 is 2764555.

55546720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55546721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173424 + ... + 173743.

It is an arithmetic number, because the mean of its divisors is an integer number (5467896).

Almost surely, 2^55546720 is an apocalyptic number.

It is an amenable number.

55546720 is an abundant number, since it is smaller than the sum of its proper divisors (75682784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55546720 is a wasteful number, since it uses less digits than its factorization.

55546720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347182 (or 347174 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 55546720 is about 7452.9671943462. The cubic root of 55546720 is about 381.5511847394.

The spelling of 55546720 in words is "fifty-five million, five hundred forty-six thousand, seven hundred twenty".